The Pb(Fe1/2Nb1/2)O3 Ferroelectromagnetic Ceramics in a View of Possibilities to be Used for Electric Transducers
D. Bochenek and R. Zachariasz
Faculty of Computer Science and Materials Science, University of Silesia, Department of Material Science, Śnieżna 2, 41-200 Sosnowiec, Poland
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The PbFe1/2Nb1/2O3 (PFN) ceramics can be obtained by a lot of ways. There are a lot of methods and techniques to synthesize the PFN powder such as: reactions in the solid phase by onestage or twostage synthesizing method (the columbite method), molten salt synthesis, sol-gel, coprecipitation method and sintering of compacts from a loose mixture of powders. Each of them requires accuracy and precision to conduct a technological process, aiming at obtaining a product with the optimum parameters. In the work PFN specimens were obtained by onestage synthesis methods using two different powder synthesizing techniques: by calcining (sintering of a loose mixture of the PFN powder) and as a result of sintering of pressed compacts from the PFN powder mixture at high temperature (pressing). The obtained specimens were subjected to Xray and microstructural examinations and tests of internal friction and dielectric properties. The tests showed that the ceramics obtained by the powder calcining method has better applied properties.
DOI: 10.12693/APhysPolA.114.A-15
PACS numbers: 77.84.-s, 75.50.Bb, 77.80.Bh, 75.50.Kz